The prevalence of the coronavirus in England’s wastewater has barely changed over the last six months, despite the explosion of Omicron.
Sewage samples analysed by the UK Health Security Agency show small fluctuations in virus levels since June, reflecting changes in the nation’s Covid rates.
But the unprecedented surge in Covid cases, driven by the extremely-transmissible variant, isn’t visible in the UKHSA’s charts.
Experts told MailOnline the failure of the samples to pick up the surge in Omicron may be